2008 CHEVROLET AVALANCHE warning

The system can be
disabled by pressing the
rear park aid disable button
located next to the radio.
The indicator light will
come on and PARKING
ASSIST OFF displays
on the
Driver Information Center (DIC) to indicate that URPA is
off, seeDIC Warnings and Messages on page 3-59
for information about clearing the message.
Notice:If you use URPA while the tailgate is
lowered, it may not detect an object behind your
vehicle, and you might back into the object and
damage your vehicle. Always verify the tailgate is
closed when using URPA or turn off URPA when
driving with the tailgate lowered.When the System Does Not Seem to
Work Properly
If the URPA system will not activate due to a temporary
condition, the message PARKING ASSIST OFF will be
displayed on the DIC and a red light will be shown on
the rear URPA display when the shift lever is moved into
R (Reverse). This occurs under the following conditions:
The driver disables the system.
The parking brake pedal is depressed.
The ultrasonic sensors are not clean. Keep the
vehicle’s rear bumper free of mud, dirt, snow, ice and
slush. For cleaning instructions, seeWashing Your
Vehicle on page 5-102.
A trailer was attached to the vehicle, or a bicycle or
an object was hanging out of the tailgate during the
last drive cycle, the red light may illuminate in the
rear display. Once the attached object is removed,
URPA will return to normal operation.
A tow bar is attached to the vehicle.
The vehicle’s bumper is damaged. Take the vehicle
to your dealer/retailer to repair the system.
Other conditions may affect system performance,
such as vibrations from a jackhammer or the
compression of air brakes on a very large truck.
If the system is still disabled, after driving forward at
least 15 mph (25 km/h), take the vehicle to your dealer/
retailer.
2-60

Instrument Panel Overview...............................3-4
Hazard Warning Flashers................................3-6
Other Warning Devices...................................3-6
Horn .............................................................3-6
Tilt Wheel.....................................................3-7
Turn Signal/Multifunction Lever.........................3-7
Turn and Lane-Change Signals........................3-8
Headlamp High/Low-Beam Changer..................3-9
Flash-to-Pass.................................................3-9
Windshield Wipers..........................................3-9
Rainsense™ II Wipers...................................3-10
Windshield Washer.......................................3-11
Cruise Control..............................................3-12
Exterior Lamps.............................................3-14
Headlamps on Reminder................................3-15
Daytime Running Lamps (DRL).......................3-16
Automatic Headlamp System..........................3-16
Fog Lamps ..................................................3-17
Exterior Cargo Lamps....................................3-17
Instrument Panel Brightness...........................3-18
Dome Lamps ...............................................3-18
Dome Lamp Override....................................3-18
Entry/Exit Lighting.........................................3-18
Reading Lamps............................................3-18
Electric Power Management...........................3-19
Battery Run-Down Protection..........................3-19Accessory Power Outlet(s).............................3-20
Ashtray(s) and Cigarette Lighter......................3-20
Climate Controls............................................3-21
Climate Control System.................................3-21
Dual Automatic Climate Control System...........3-24
Outlet Adjustment.........................................3-31
Warning Lights, Gages, and Indicators............3-32
Instrument Panel Cluster................................3-33
Speedometer and Odometer...........................3-34
Trip Odometer..............................................3-34
Tachometer.................................................3-34
Safety Belt Reminders...................................3-34
Airbag Readiness Light..................................3-35
Passenger Airbag Status Indicator...................3-36
Charging System Light..................................3-38
Voltmeter Gage............................................3-39
Brake System Warning Light..........................3-39
Anti-lock Brake System (ABS) Warning Light. . . .3-41
StabiliTrak
®Indicator Light.............................3-41
Engine Coolant Temperature Gage..................3-42
Tire Pressure Light.......................................3-42
Malfunction Indicator Lamp.............................3-43
Oil Pressure Gage........................................3-46
Oil Pressure Light.........................................3-47
Security Light...............................................3-47
Section 3 Instrument Panel
3-1

Fog Lamp Light............................................3-48
Cruise Control Light......................................3-48
Highbeam On Light.......................................3-48
Tow/Haul Mode Light....................................3-48
Fuel Gage...................................................3-49
Low Fuel Warning Light.................................3-50
Driver Information Center (DIC).......................3-50
DIC Operation and Displays
(With DIC Buttons)....................................3-51
DIC Operation and Displays
(Without DIC Buttons)................................3-56
DIC Warnings and Messages.........................3-59
DIC Vehicle Customization
(With DIC Buttons)....................................3-66Audio System(s).............................................3-75
Setting the Clock..........................................3-76
Radio(s) (MP3).............................................3-78
Using an MP3 (Radio with CD or
Six-Disc CD Player)...................................3-96
Using an MP3 (Radio with CD and
DVD Player)...........................................3-101
XM Radio Messages...................................3-106
Navigation/Radio System..............................3-107
Rear Seat Entertainment (RSE) System.........3-107
Rear Seat Audio (RSA)................................3-116
Theft-Deterrent Feature................................3-118
Audio Steering Wheel Controls......................3-118
Radio Reception.........................................3-119
Fixed Mast Antenna....................................3-120
XM™ Satellite Radio Antenna System............3-120
Section 3 Instrument Panel
3-2

The main components of the instrument panel are the following:
A. Air Outlets. SeeOutlet Adjustment on page 3-31.
B. Turn Signal/Multifunction Lever. SeeTurn
Signal/Multifunction Lever on page 3-7.
C. Instrument Panel Cluster. SeeInstrument Panel
Cluster on page 3-33.
D. Hazard Warning Flasher Button. SeeHazard
Warning Flashers on page 3-6.
E. Shift Lever. SeeAutomatic Transmission Operation
on page 2-35.
F. Tow/Haul Selector Button (If Equipped).
SeeTow/Haul Mode on page 2-38.
G. Driver Information Center Controls. SeeDriver
Information Center (DIC) on page 3-50.
H. Audio System. SeeAudio System(s) on page 3-75.
I. Exterior Lamps Control. SeeExterior Lamps on
page 3-14.
J. Dome Lamp Override Button. SeeDome Lamp
Override on page 3-18.
K. Automatic Transfer Case Control. (If Equipped).
SeeFour-Wheel Drive on page 2-39.
L. Cruise Control Buttons. SeeCruise Control on
page 3-12.M. Tilt Wheel Lever. SeeTilt Wheel on page 3-7.
N. Horn. SeeHorn on page 3-6.
O. Audio Steering Wheel Controls. SeeAudio Steering
Wheel Controls on page 3-118.
P. Climate Control System or Dual Automatic Climate
Control System (If Equipped). SeeClimate Control
System on page 3-21orDual Automatic Climate
Control System on page 3-24.
Q. Accessory Power Outlets. SeeAccessory
Power Outlet(s) on page 3-20. Cigarette Lighter
(If Equipped). SeeAshtray(s) and Cigarette Lighter
on page 3-20.
R. StabiliTrak
®Button. SeeStabiliTrak®System
on page 4-6. Pedal Adjust Button (If Equipped).
SeeAdjustable Throttle and Brake Pedal on
page 2-33. Rear Park Assist Disable Button
(If Equipped). SeeUltrasonic Rear Parking Assist
(URPA) on page 2-58. Heated Windshield Washer
Fluid Button (If Equipped). SeeWindshield Washer
on page 3-11. Power Running Boards Disable Button
(If Equipped). SeePower Running Boards on
page 2-22.
S. Glove Box. SeeGlove Box on page 2-71.
3-5

Hazard Warning Flashers
The hazard warning ashers warn others. They also let
the police and other emergency vehicles know you
have a problem.
The hazard warning
asher button is located
on top of the steering
column.
Press the button to make the front and rear turn signal
lamps ash on and off. Press the button again to
turn the ashers off.The hazard warning ashers work no matter what
ignition position the key is in, and even if the key is
not in the ignition.
When the hazard warning ashers are on, your vehicle’s
turn signals will not work.
Other Warning Devices
If you carry reective triangles, you can set them up at
the side of the road about 300 feet (100 m) behind
your vehicle.
Horn
To sound the horn, press the center pad on the steering
wheel.
3-6

Turn and Lane-Change Signals
The turn signal has two upward (for right) and two
downward (for left) positions. These positions allow you
to signal a turn or a lane change.
To signal a turn, move the lever all the way up or
down. When the turn is nished, the lever will return
automatically.
To signal a lane change, raise or lower the lever for
less than one second until the arrow starts to ash.
This will cause the turn signals to automatically
ash three times. It will ash six times if the tow-haul
mode is active. Holding the turn signal lever for
more than one second will cause the turn signals to
ash until you release the lever. The lever will return
by itself when it is released.
An arrow on the instrument
panel cluster will ash
in the direction of the
turn or lane change.As you signal a turn or a lane change, if the arrows
ash more quickly than normal, a signal bulb may
be burned out and other drivers will not see your
turn signal.
If a bulb is burned out, replace it to help avoid an
accident. If the arrows do not go on at all when you
signal a turn, check for burned-out bulbs and a blown
fuse. SeeInstrument Panel Fuse Block on page 5-109
andUnderhood Fuse Block on page 5-111.
Turn Signal On Chime
If your turn signal is left on for more than 3/4 of a mile
(1.2 km), a chime will sound at each ash of the turn
signal and the message TURN SIGNAL ON will also
appear in the DIC. SeeDIC Warnings and Messages
on page 3-59. To turn the chime and message off, move
the turn signal lever to the off position.
3-8

Electric Power Management
The vehicle has Electric Power Management (EPM) that
estimates the battery’s temperature and state of charge.
It then adjusts the voltage for best performance and
extended life of the battery.
When the battery’s state of charge is low, the voltage is
raised slightly to quickly put the charge back in. When
the state of charge is high, the voltage is lowered slightly
to prevent overcharging. If the vehicle has a voltmeter
gage or a voltage display on the Driver Information
Center (DIC), you may see the voltage move up
or down. This is normal. If there is a problem,
an alert will be displayed.
The battery can be discharged at idle if the electrical
loads are very high. This is true for all vehicles. This is
because the generator (alternator) may not be spinning
fast enough at idle to produce all the power that is
needed for very high electrical loads.
A high electrical load occurs when several of the
following loads are on: headlamps, high beams, fog
lamps, rear window defogger, climate control fan at
high speed, heated seats, engine cooling fans, trailer
loads, and loads plugged into accessory power outlets.EPM works to prevent excessive discharge of the
battery. It does this by balancing the generator’s output
and the vehicle’s electrical needs. It can increase
engine idle speed to generate more power, whenever
needed. It can temporarily reduce the power demands of
some accessories.
Normally, these actions occur in steps or levels, without
being noticeable. In rare cases at the highest levels of
corrective action, this action may be noticeable to the
driver. If so, a Driver Information Center (DIC) message
might be displayed, such as Battery Saver Active or
Service Battery Charging System. If this message is
displayed, it is recommended that the driver reduce the
electrical loads as much as possible. SeeDIC Warnings
and Messages on page 3-59.
Battery Run-Down Protection
This feature shuts off the dome lamps if they are left on
for more than 10 minutes when the ignition is in LOCK.
This will help prevent the battery from running down.
3-19

Warning Lights, Gages, and
Indicators
This part describes the warning lights and gages on
your vehicle. The pictures help to locate them.
Warning lights and gages can signal that something
is wrong before it becomes serious enough to cause an
expensive repair or replacement. Paying attention to
the warning lights and gages could also save you
or others from injury.
Warning lights come on when there may be or is a
problem with one of your vehicle’s functions. As the
details show on the next few pages, some warning lights
come on briey when you start the engine just to let
you know they are working. If you are familiar with this
section, you should not be alarmed when this happens.Gages can indicate when there may be or is a problem
with one of your vehicle’s functions. Often gages
and warning lights work together to let you know
when there is a problem with your vehicle.
When one of the warning lights comes on and stays on
as you are driving, or when one of the gages shows there
may be a problem, check the section that tells you what
to do about it. Please follow this manual’s advice. Waiting
to do repairs can be costly and even dangerous.
So please get to know your vehicle’s warning lights
and gages. They can be a big help.
Your vehicle also has a Driver Information Center (DIC)
that works along with warning lights and gages.
SeeDIC Warnings and Messages on page 3-59
for more information.
3-32